Woman disturbed by aircon compressor noise

Key Takeaways:

  • What Are the Common Types of Aircon Compressor Noises?
    These include banging or clanking sounds; clanking or rattling sounds; clicking, rumbling, or ticking sounds; constant clicking or buzzing noises; humming noises; and squealing noises.
  • When to Call a Professional
    If you hear any of these aircon compressor noises, contact a professional aircon servicing company in Singapore for expert diagnosis and repairs.

Air conditioners are used almost year-round in Singapore’s tropical climate. As the key component of a cooling system, the compressor endures significant operational hours to keep your indoor environment comfortable. However, unusual aircon compressor noises can indicate underlying issues that require immediate attention. Ignoring these warning sounds may lead to expensive repairs or even a complete system breakdown. To ensure the overall longevity and consistent performance of your AC system, let’s look at the common types of aircon compressor noises.

What Are the Common Types of Aircon Compressor Noises?

1. Banging or Clanking Sounds

A loud banging or clanking noise coming from your aircon compressor usually signals a loose or broken internal component. This could be a disconnected connecting rod, a damaged piston pin, or even a displaced crankshaft. Left unchecked, this issue can cause further damage to the system, potentially leading to costly repairs. If you hear this type of sound, turn off your aircon and contact an aircon cleaning service to inspect and diagnose the problem.

2. Clanking or Rattling Sounds

Hear a constant clank or rattle from your aircon’s metal box? That could be loose or worn-out motor mounts. This issue can cause the compressor to vibrate excessively, affecting the overall performance and even hiking up your electricity bill. To prevent further cooling system issues, engage professional HVAC troubleshooting in advance so that your unit runs longer.

3. Clicking, Rumbling, or Ticking Sounds

Frequent clicking, rumbling, or ticking noises often point to loose refrigerant tubing, unsecured bolts, or a broken spring within the compressor. These components should be firmly in place to prevent further wear and tear. Ignoring compressor issues can result in refrigerant leaks or breakdowns. Regular aircon maintenance with a reliable aircon contractor helps detect and resolve these problems before they worsen.

4. Constant Clicking or Buzzing Noises

Continuous clicking or buzzing near the compressor is another common aircon compressor noise. This may indicate a failing electrical relay, a crucial component responsible for controlling the flow of power to the compressor. Any malfunction could prevent your aircon from cooling effectively. Electrical issues require immediate attention from a trained technician, as faulty wiring or relay failure can pose safety hazards.

5. Humming Noises

A steady, low-humming noise from your aircon’s compressor may be a sign of low oil levels. Insufficient lubrication can lead to increased friction and overheating, ultimately causing system failure. In some cases, oil leakage could be the root cause. Engage an aircon cleaning service to inspect your unit, replenish the oil levels, and check for potential leaks.

6. Squealing Noises

A little squeak when your aircon starts is often fine, but a loud or worsening squeal is another type of aircon compressor noise that should not be ignored. It may be due to a worn-out belt or a failing motor bearing. If the noise intensifies over time, professional intervention is necessary to prevent complete system failure.

When to Call a Professional

Recognising these aircon compressor noises early can save you from expensive repairs and extend the life of your unit. If you hear any of these sounds, don’t attempt a DIY fix—contact a professional aircon cleaning and servicing company in Singapore for expert diagnosis and repairs.

Technician checking aircon filter

By addressing cooling system issues promptly, you can enjoy a quieter, more reliable air conditioning experience. Schedule an inspection with Newway to keep your cooling system in top condition. Founded in 1987, we provide comprehensive cooling solutions for both residential and commercial customers.

Contact us for quality routine HVAC troubleshooting and air conditioner maintenance services.